US9140343B1 - Transmission system of hybrid electric vehicle - Google Patents

Transmission system of hybrid electric vehicle Download PDF

Info

Publication number
US9140343B1
US9140343B1 US14/557,661 US201414557661A US9140343B1 US 9140343 B1 US9140343 B1 US 9140343B1 US 201414557661 A US201414557661 A US 201414557661A US 9140343 B1 US9140343 B1 US 9140343B1
Authority
US
United States
Prior art keywords
motor
gear
generator
transmission system
torque
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
US14/557,661
Other languages
English (en)
Inventor
Baekyu Kim
Insup KIM
Seokjoon Kim
Hyunsup Kim
SungGon BYUN
Heera Lee
Chulmin AHN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hyundai Motor Co
Original Assignee
Hyundai Motor Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hyundai Motor Co filed Critical Hyundai Motor Co
Assigned to HYUNDAI MOTOR COMPANY reassignment HYUNDAI MOTOR COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AHN, CHULMIN, BYUN, SUNGGON, KIM, BAEKYU, KIM, HYUNSUP, KIM, INSUP, KIM, SEOKJOON, LEE, HEERA
Application granted granted Critical
Publication of US9140343B1 publication Critical patent/US9140343B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/04—Combinations of toothed gearings only
    • F16H37/042—Combinations of toothed gearings only change gear transmissions in group arrangement
    • F16H37/046—Combinations of toothed gearings only change gear transmissions in group arrangement with an additional planetary gear train, e.g. creep gear, overdrive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B60K6/405—Housings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/44—Series-parallel type
    • B60K6/442—Series-parallel switching type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0476—Electric machines and gearing, i.e. joint lubrication or cooling or heating thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/44—Series-parallel type
    • B60K6/445—Differential gearing distribution type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/04—Combinations of toothed gearings only
    • F16H2037/048—Combinations of parallel shaft and orbital motion gearing, wherein the orbital motion gear has more than one connection with the parallel shaft gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/0021—Transmissions for multiple ratios specially adapted for electric vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0034—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising two forward speeds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
    • F16H2200/2005—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with one sets of orbital gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
    • F16H2200/2035—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with two engaging means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2097—Transmissions using gears with orbital motion comprising an orbital gear set member permanently connected to the housing, e.g. a sun wheel permanently connected to the housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/46—Gearings having only two central gears, connected by orbital gears
    • F16H3/48—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears
    • F16H3/52—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears
    • F16H3/54—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears one of the central gears being internally toothed and the other externally toothed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S903/00—Hybrid electric vehicles, HEVS
    • Y10S903/902—Prime movers comprising electrical and internal combustion motors
    • Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
    • Y10S903/904—Component specially adapted for hev
    • Y10S903/915—Specific drive or transmission adapted for hev
    • Y10S903/917—Specific drive or transmission adapted for hev with transmission for changing gear ratio

Definitions

  • the present invention relates to a transmission system of a hybrid electric vehicle. More particularly, the present invention relates to a transmission system of a hybrid electric vehicle that can achieve electric vehicle (EV), continuation mode and parallel mode including direct-coupling and overdrive (OD).
  • EV electric vehicle
  • OD overdrive
  • a hybrid electric vehicle is a vehicle which uses two different power sources efficiently.
  • Such a hybrid electric vehicle typically uses an engine and a motor/generator.
  • the hybrid electric vehicle uses the motor/generator having relatively better low-speed torque characteristics as a main power source at a low-speed and uses an engine having relatively better high-speed torque characteristics as a main power source at a high-speed.
  • the hybrid electric vehicle stops operation of the engine using the fossil fuel and uses the motor/generator at a low-speed region, fuel consumption may be improved and exhaust gas may be reduced.
  • the power transmission system of a hybrid electric vehicle is classified into a single-mode type and a multi-mode type.
  • a torque delivery apparatus such as clutches and brakes for shift control is not necessary, but fuel consumption is high due to deterioration of efficiency at a high-speed region and an additional torque multiplication device is required for being applied to a large vehicle according to the single-mode type.
  • the multi-mode type Since the multi-mode type has high efficiency at the high-speed region and is able to multiply torque autonomously, the multi-mode type can be applied to a full size vehicle.
  • the multi-mode type instead of the single-mode type is applied as the power transmission system of a hybrid electric vehicle and is also under continuous investigation.
  • the power transmission system of the multi-mode type includes a plurality of planetary gear sets, a plurality of motor/generators operated as a motor and/or a generator, a plurality of torque delivery apparatus controlling rotation elements of the planetary gear sets, and a battery used as a power source of the motor/generators.
  • the power transmission system of the multi-mode type has different operating mechanisms depend on connections of the planetary gear sets, the motor/generators, and the torque delivery apparatus.
  • the power transmission system of the multi-mode type has different features such a durability, power delivery efficiency, and size depend on the connections of the planetary gear sets, the motor/generators, and the torque delivery apparatus. Therefore, designs for the connection structure of the power transmission system of a hybrid electric vehicle are also under continuous investigation to achieve robust and compact power transmission system having no power loss.
  • Various aspects of the present invention are directed to providing a transmission system of a hybrid electric vehicle having advantages of easily fixing a sun gear to a rear cover by positioning a planetary gear set disposed on an input shaft at a rearmost portion of a transmission housing and achieving a compact design by causing axial load to be supported by the rear cover.
  • various aspects of the present invention are directed to providing a transmission system of a hybrid electric vehicle that can connect a ring gear of a planetary gear set and a first motor/generator without an additional connecting shaft.
  • various aspects of the present invention are directed to providing a transmission system of a hybrid electric vehicle which can reduce parking impact by disposing a parking gear on an outer shaft having relatively large inertia.
  • various aspects of the present invention are directed to providing a transmission system of a hybrid electric vehicle where a valve body and a tank for collecting churning oil are disposed above a first clutch disposed between a second motor/generator and an engine. Therefore, cooling oil is supplied to the second motor/generator easily when the vehicle runs at EV mode and a space in a transmission housing is efficiently utilized.
  • a transmission system of a hybrid electric vehicle may include first and second motor/generators, a planetary gear set, first and second output gears, and first and second clutches on an axis of an input shaft receiving torque of an engine in a transmission housing, a hollow shaft disposed at a radial exterior of the input shaft and adapted to transmit the torque of the engine or torque of the first motor/generator to the second output gear, an outer shaft disposed at a radial exterior of the hollow shaft and adapted to transmit torque of the second motor/generator to the first output gear, and a rear cover coupled to a rear end portion of the transmission housing, in which the planetary gear set may include a sun gear, a planet carrier and a ring gear as rotation elements thereof and is disposed on a rear end portion of the input shaft in the transmission housing such that the sun gear is directly fixed to the rear cover.
  • the first clutch, the second output gear, the first output gear, the second motor/generator, the second clutch, the first motor/generator and the planetary gear set may be sequentially dispose from an engine side to a rear of the transmission housing.
  • the transmission system may further include a parking gear disposed between the first output gear and the second output gear and connected to the outer shaft.
  • a snap ring for fixing the parking gear in an axial direction and a fixing ring for fixing the snap ring in the axial direction and in a radial direction may be mounted on the outer shaft.
  • the sun gear of the planetary gear set may be splined to a fixed shaft integrally protruded from the rear cover in an axial direction.
  • the planet carrier of the planetary gear set may be rotatably supported on an exterior circumference of the sun gear by a ball bearing.
  • the first clutch may be splined to the input shaft at an opposite side of the first output gear with reference to the second output gear.
  • the second clutch may be rotatably supported on the input shaft and the outer shaft by ball bearings between the first and second motor/generators.
  • a snap ring for fixing a hub connected to the second motor/generator in an axial direction and a fixing ring for fixing the snap ring in the axial direction and in a radial direction may be mounted on the outer shaft.
  • the second clutch may be connected to the ring gear of the planetary gear set through a hub connected to the first motor/generator.
  • a valve body and a tank for collecting churning oil may be disposed above the first clutch in the transmission housing.
  • vehicle or “vehicular” or other similar terms as used herein is inclusive of motor vehicles in general such as passenger automobiles including sports utility vehicles (SUV), buses, trucks, various commercial vehicles, watercraft including a variety of boats and ships, aircraft, and the like, and includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles and other alternative fuel vehicles (e.g., fuel derived from resources other than petroleum).
  • a hybrid vehicle is a vehicle that has two or more sources of power, for example, both gasoline-powered and electric-powered vehicles.
  • FIG. 1 is a schematic diagram of an exemplary transmission system of a hybrid electric vehicle according to the present invention.
  • FIG. 2 is a cross-sectional view of an exemplary transmission system of a hybrid electric vehicle according to the present invention.
  • FIG. 3 is an enlarged cross-sectional view of A portion in FIG. 2 .
  • FIG. 4 is an enlarged cross-sectional view of B portion in FIG. 2 .
  • FIG. 5 is an enlarged cross-sectional view of C portion in FIG. 2 .
  • FIG. 1 is a schematic diagram of a transmission system of a hybrid electric vehicle according to various embodiments of the present invention.
  • a transmission system of a hybrid electric vehicle change torques of an engine Eng and first and second motor/generators MG 1 and MG 2 according to running state of the vehicle and outputs the changed torques through first and second output gears OG 1 and OG 2 .
  • the transmission system includes the first and second motor/generators MG 1 and MG 2 , a planetary gear set PS, the first and second output gears OG 1 and OG 2 , first and second clutches CL 1 and CL 2 , and a speed reduction unit CGU.
  • Each of the first motor/generator MG 1 and the second motor/generator MG 2 is independent power source and operates as a motor or a generator.
  • the first motor/generator MG 1 is directly connected to a ring gear R of the planetary gear set PS so as to be operated as a start motor for starting the engine or to be operated as a generator generating electricity by using the torque of the engine through the ring gear R.
  • the second motor/generator MG 2 is directly connected to the first output gear OG 1 through an outer shaft MS 2 so as to be operated as a motor supplying the torque to the first output gear OG 1 .
  • a stator of the first motor/generator MG 1 and a stator of the second motor/generator MG 2 are respectively fixed to a transmission housing H, and a rotor of the first motor/generator MG 1 and a rotor of the second motor/generator MG 2 are connected respectively to the ring gear R of the planetary gear set PS and the first output gear OG 1 .
  • the first and second motor/generators MG 1 and MG 2 and the planetary gear set PS are disposed on an input shaft IS.
  • the first output gear OG 1 is operated as an output gear outputting the torque of the second motor/generator
  • the second output gear OG 2 is operated as an output gear outputting the torque of the engine Eng received through the planetary gear set PS.
  • first and second clutches CL 1 and CL 2 may be a conventional multi-plate friction element, and connect one rotation body to another rotation body.
  • the planetary gear set PS is a single pinion planetary gear set, and includes a sun gear S, a planet carrier PC rotatably supporting a pinion P externally engaged with the sun gear S, and the ring gear R internally engaged with the pinion P as rotation elements thereof.
  • the sun gear S is operated as a fixed element
  • the planet carrier PC is connected to the input shaft IS
  • the ring gear R is operated as an output element and is connected to the first motor/generator MG 1 .
  • the first motor/generator MG 1 is connected to the ring gear R of the planetary gear set PS so as to be operated as a motor for driving the ring gear R or to be operated as a generator generating electricity by torque of the ring gear R.
  • the first motor/generator MG 1 is selectively connected to the second output gear OG 2 through a hollow shaft MS 1 .
  • the second motor/generator MG 2 is connected to the first output gear OG 1 and transmits torque to the first output gear OG 1 .
  • the first clutch CL 1 is a clutch operating at underdrive (UD) and is disposed between the input shaft IS and the second output gear OG 2 .
  • the first clutch CL 1 selectively connects the input shaft IS and the second output gear OG 2 so as to transmit the torque of the engine Eng to the second output gear OG 2 without speed change.
  • the second clutch CL 2 is a clutch operating at overdrive (OD) and is disposed between the hollow shaft MS 1 connected to the ring gear R of the planetary gear set PS and the first motor/generator and the second output gear OG 2 .
  • the second clutch CL 2 selectively connects the hollow shaft MS 1 and the second output gear OG 2 so as to increase rotation speed of the engine Eng through the planetary gear set PS and transmit the increased rotation speed to the second output gear OG 2 .
  • rotation speeds of the first and second output gears OG 1 and OG 2 is decreased by the speed reduction unit CGU, and the decreased rotation speed is transmitted to a final reduction gear FG of a differential apparatus DIFF.
  • the speed reduction unit CGU is disposed between the input shaft IS and the differential apparatus DIFF.
  • the speed reduction unit CGU includes an intermediate shaft CS disposed in parallel with the input shaft IS, a first intermediate gear CG 1 fixedly disposed on an end portion of the intermediate shaft CS and engaged with the first output gear OG 1 , and a second intermediate gear CG 2 fixedly disposed on a middle portion of the intermediate shaft CS and is engaged with the second output gear OG 2 .
  • a drive gear DG is fixedly disposed on the other end portion of the intermediate shaft CS and is engaged with the final reduction gear FG of the differential apparatus DIFF.
  • the speed reduction unit CGU decreases rotation speeds of the first and second output gears OG 1 and OG 2 and transmits the decreased rotation speed to the final reduction gear FG.
  • the transmission system of a hybrid electric vehicle can achieve EV mode, continuation mode, and parallel mode including direct-coupling and OD.
  • first and second clutches CL 1 and CL 2 are operated at the EV mode and the continuation mode, the first clutch CL 1 is operated at the direct-coupling of the parallel mode, and the second clutch CL 2 is operated at the OD of the parallel mode.
  • underdrive UD
  • 1:1 and overdrive OD
  • none of the clutches is operated at the EV mode.
  • the engine Eng is maintained in a stopped state and the planetary gear set PS is not directly involved shift at the EV mode.
  • an electric continuously variable transmission is achieved by the torque of the second motor/generator MG 2 transmitted to the first output gear OG 1 .
  • the second motor/generator MG 2 is transmitted to the final reduction gear FG of the differential apparatus DIFF through the outer shaft MS 2 , the first output gear OG 1 , the first intermediate gear CG 1 , and the drive gear DG.
  • the continuation mode is achieved. At this time, electric power generated by the first motor/generator MG 1 is supplied to the second motor/generator MG 2 as drive power.
  • the sun gear S is operated as the fixed element. Therefore, the decreased rotation speed is output through the planet carrier PC.
  • the torque is input to the engine Eng through the input shaft IS connected to the planet carrier PC such that the engine Eng is started.
  • the first motor/generator MG 1 receives the torque of the engine Eng through the ring gear R and generates electric power.
  • the planetary gear set PS is not directly involved in shift and an electric continuously variable transmission is achieved by the torque of the second motor/generator MG 2 at the continuation mode.
  • the planetary gear set PS is involved in the starting of the engine Eng and power generation of the first motor/generator MG 1 .
  • the torque of the second motor/generator MG 2 is transmitted to the final reduction gear FG of the differential apparatus DIFF through the outer shaft MS 2 , the first output gear OG 1 , the first intermediate gear CG 1 , and the drive gear DG at the continuation mode.
  • the second motor/generator MG 2 uses the electric power generated by the first motor/generator MG 1 and remaining electric power may be charged in a battery.
  • the first clutch CL 1 is operated at the direct-coupling of the parallel mode.
  • the torque of the engine Eng is used as main power and the torque of the second motor/generator MG 2 is used as auxiliary power at the direct-coupling of the parallel mode.
  • the torque of the engine Eng is transmitted to the second output gear OG 2 through the input shaft IS as main power by operation of the first clutch CL 1 , and the torque of the second motor/generator MG 2 is transmitted to the first output gear OG 1 as auxiliary power.
  • the torque of the engine Eng may be used for generating electric power by the first motor/generator MG 1 .
  • the planetary gear set PS is not directly involved in shift, and the shift is achieved by the torque of the engine Eng transmitted to the second output gear OG 2 through the input shaft IS and the torque of the second motor/generator MG 2 transmitted to the first output gear OG 1 through the outer shaft MS 2 at the direct-coupling of the parallel mode.
  • the torques of the engine Eng and the second motor/generator MG 2 input to the first and second output gears OG 1 and OG 2 are transmitted to the final reduction gear FG of the differential apparatus DIFF through the first and second intermediate gears CG 1 and CG 2 and the drive gear DG.
  • the second clutch CL 2 is operated at the OD of the parallel mode.
  • the torque of the engine Eng is used as main power and the torque of the second motor/generator MG 2 is used as auxiliary power at the OD of the parallel mode.
  • the torque of the engine Eng may be used for generating electric power by the first motor/generator MG 1 .
  • the planetary gear set PS is not directly involved in shift, and the shift is achieved by the torque of the engine Eng transmitted to the second output gear OG 2 through the input shaft IS and the planetary gear set PS and the torque of the second motor/generator MG 2 transmitted to the first output gear OG 1 at the OD of the parallel mode.
  • the torques of the engine Eng and the second motor/generator MG 2 input to the first and second output gears OG 1 and OG 2 are transmitted to the final reduction gear FG of the differential apparatus DIFF through the first and second intermediate gears CG 1 and CG 2 and the drive gear DG.
  • FIG. 2 is a cross-sectional view of a transmission system of a hybrid electric vehicle according to various embodiments of the present invention
  • FIG. 3 , FIG. 4 and FIG. 5 are enlarged cross-sectional views of A portion, B portion and C portion in FIG. 2 , respectively.
  • the first and second motor/generators MG 1 and MG 2 , the planetary gear set PS, the first output gear OG 1 for the second motor/generator MG 2 , the second output gear OG 2 for the engine Eng, the first clutch CL 1 for the underdrive (UD) and the second clutch CL 2 for the overdrive (OD) are disposed on an axis of the input shaft IS into which the torque of the engine Eng is input in the transmission system of a hybrid electric vehicle according to various embodiments of the present invention.
  • the first clutch CL 1 , the second output gear OG 2 , the first output gear OG 1 , the second motor/generator MG 2 , the second clutch CL 2 , the first motor/generator MG 1 and the planetary gear set PS are sequentially disposed on the axis of the input shaft IS from the engine Eng to the rear.
  • the hollow shaft MS 1 for transmitting the torque of the engine Eng or the torque of the first motor/generator MG 1 to the second output gear OG 2 is disposed at a radial exterior of the input shaft IS concentrically with the input shaft IS
  • the outer shaft MS 2 for transmitting the torque of the second motor/generator MG 2 to the first output gear OG 1 is disposed at a radial exterior of the hollow shaft MS 1 .
  • a parking gear PG is disposed between the first output gear OG 1 and the second output gear OG 2 and is splined to the outer shaft MS 2 .
  • movement of the parking gear PG connected to the outer shaft MS 2 in an axial direction is limited by a snap ring SR 1 mounted on the outer shaft MS 2 , and the snap ring SR 1 is fixed to the outer shaft MS 2 by the fixing ring LR 1 in the axial direction and in a radial direction such that decoupling of the snap ring SR 1 is prevented when rotating with high speed.
  • the planetary gear set PS is disposed at an opposite side (at the rearmost) of the engine Eng on the input shaft IS, and the sun gear S is fixed to a rear cover RC coupled to a rear end portion of the transmission housing H so as to be operated as a fixed element.
  • the sun gear S is splined to a fixed shaft 11 integrally protruded from the rear cover RC in the axial direction.
  • the planet carrier PC of the planetary gear set PS is rotatably supported by an exterior circumference of an extended portion of the sun gear S.
  • movement of a hub 15 splined to the outer shaft MS 2 and connected to the rotor RT 2 of the second motor/generator MG 2 is limited in the axial direction by a snap ring SR 2 mounted on the outer shaft MS 2 , and the snap ring SR 2 is fixed to the outer shaft MS 2 in the axial direction and in the radial direction by a fixing ring LR 2 . Therefore, decoupling of the snap ring SR 2 is prevented when rotating with high speed.
  • the first clutch CL 1 is splined to the input shaft IS at an opposite side of the first output gear OG 1 with respect to the second output gear OG 2 .
  • the second clutch CL 2 is rotatably supported on the input shaft IS and the outer shaft MS 2 by ball bearings B 2 and B 3 between the first and second motor/generators MG 1 and MG 2 .
  • the second clutch CL 2 is disposed between the first and second motor/generators MG 1 and MG 2 and is connected to the ring gear R of the planetary gear set PS and the rotor RT 1 of the first motor/generator MG 1 through the hub 13 connected to the rotor RT 1 of the first motor/generator MG 1 .
  • a valve body VB and a tank TK for collecting a churning oil are disposed above the first clutch CL 1 between the second motor/generator MG 2 and the engine Eng in the transmission housing H. Therefore, a space in the transmission housing H can be utilized effectively and a cooling oil can be supplied to the second motor/generator MG 2 easily.
  • the planetary gear set PS disposed on the input shaft IS is positioned at the rearmost portion in the transmission housing H, and the sun gear S is splined to the rear cover RC. Therefore, axial load is supported by the rear cover RC and overall length of the transmission housing H may be shortened.
  • the second clutch CL 2 is disposed between the first and second motor/generators MG 1 and MG 2 and is connected to the ring gear R of the planetary gear set PS and the first motor/generator MG 1 without an additional connecting shaft, the number of components and weight may be reduced.
  • cooling oil can be supplied to the second motor/generator MG 2 easily when the vehicle runs at the EV mode and the space in the transmission housing H can be utilized efficiently.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Arrangement Of Transmissions (AREA)
  • General Engineering & Computer Science (AREA)
  • Structure Of Transmissions (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • General Details Of Gearings (AREA)
US14/557,661 2014-09-23 2014-12-02 Transmission system of hybrid electric vehicle Active US9140343B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2014-0126784 2014-09-23
KR1020140126784A KR101610089B1 (ko) 2014-09-23 2014-09-23 하이브리드 차량용 변속장치

Publications (1)

Publication Number Publication Date
US9140343B1 true US9140343B1 (en) 2015-09-22

Family

ID=54106983

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/557,661 Active US9140343B1 (en) 2014-09-23 2014-12-02 Transmission system of hybrid electric vehicle

Country Status (5)

Country Link
US (1) US9140343B1 (ko)
JP (1) JP6457787B2 (ko)
KR (1) KR101610089B1 (ko)
CN (1) CN105782366A (ko)
DE (1) DE102014117813A1 (ko)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018019611A1 (de) * 2016-07-26 2018-02-01 Voith Patent Gmbh Antriebsvorrichtung mit überlagerungsgetriebe
CN108263193A (zh) * 2017-10-24 2018-07-10 广西玉柴机器股份有限公司 混合动力系统
US10286771B2 (en) * 2015-10-05 2019-05-14 Toyota Jidosha Kabushiki Kaisha Drive unit for hybrid vehicle
US10343671B2 (en) * 2016-12-12 2019-07-09 Hyundai Motor Company Power transmission apparatus of hybrid electric vehicle
CN110360312A (zh) * 2018-03-26 2019-10-22 爱信Ai株式会社 动力传递系统
CN110857030A (zh) * 2018-08-22 2020-03-03 现代自动车株式会社 车辆的动力传输系统
US20200171931A1 (en) * 2018-12-04 2020-06-04 Hyundai Motor Company Power transmission apparatus of hybrid electric vehicle
CN111619334A (zh) * 2020-06-01 2020-09-04 奇瑞汽车股份有限公司 混合动力系统和控制方法
US10814713B2 (en) 2016-06-13 2020-10-27 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Transaxle device
CN112224006A (zh) * 2020-08-28 2021-01-15 广西玉柴机器股份有限公司 一种三挡平行轴式双电机三行星排混合动力系统
WO2021110194A1 (de) * 2019-12-04 2021-06-10 Schaeffler Technologies AG & Co. KG Antriebseinheit und antriebsanordnung
CN112977041A (zh) * 2021-04-15 2021-06-18 上海中科深江电动车辆有限公司 双电机发电系统

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6724578B2 (ja) * 2016-06-13 2020-07-15 三菱自動車工業株式会社 トランスアクスル装置
US10106024B2 (en) * 2016-10-18 2018-10-23 Gm Global Technology Operation Llc Hybrid manual transmission
DE102017222537A1 (de) * 2017-12-12 2019-06-13 Volkswagen Aktiengesellschaft Antriebsanordnung für ein Hybridfahrzeug
CN110239334A (zh) * 2019-06-28 2019-09-17 浙江吉利控股集团有限公司 一种混合动力传动系统
KR102338309B1 (ko) * 2020-06-15 2021-12-09 현대트랜시스 주식회사 하이브리드 변속기 구조
KR102508400B1 (ko) * 2021-09-14 2023-03-08 현대트랜시스 주식회사 전기차량 감속기

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000094973A (ja) 1998-09-28 2000-04-04 Hitachi Ltd 変速装置およびそれを用いたハイブリッド車
US6910981B2 (en) 2002-02-26 2005-06-28 Nissan Motor Co., Ltd. Hybrid transmission and its assembling method
US7189177B2 (en) 2003-09-30 2007-03-13 Aisin Aw Co., Ltd. Electrically operated vehicle drive controller, electrically operated vehicle drive control method, and electrically operated vehicle with a vehicle drive controller
JP2012116435A (ja) * 2010-12-03 2012-06-21 Honda Motor Co Ltd ハイブリッド駆動装置
US8337352B2 (en) 2010-06-22 2012-12-25 Oshkosh Corporation Electromechanical variable transmission
US20130090202A1 (en) * 2011-10-08 2013-04-11 Finemech Co., Ltd. Drive device for hybrid electric vehicle
JP2013119280A (ja) 2011-12-06 2013-06-17 Mitsubishi Motors Corp ハイブリッド車用変速装置
US20140378258A1 (en) * 2013-06-24 2014-12-25 Hyundai Motor Company Transmission system of hybrid electric vehicle

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001221300A (ja) * 2000-02-03 2001-08-17 Jatco Transtechnology Ltd 自動変速機
JP4352269B2 (ja) * 2005-12-05 2009-10-28 スズキ株式会社 ハイブリッド駆動装置
AT506220B1 (de) * 2007-11-23 2009-07-15 Hofer Forschungs & Entw Gmbh Antriebssystem für kraftfahrzeuge
JP2010106896A (ja) * 2008-10-28 2010-05-13 Aisin Aw Co Ltd シャフト、プラネタリギヤ装置および自動変速機
CN201795003U (zh) * 2010-09-29 2011-04-13 长城汽车股份有限公司 一种两挡自动变速器
JP2012207687A (ja) * 2011-03-29 2012-10-25 Aisin Ai Co Ltd 変速機
US8597151B1 (en) * 2012-10-19 2013-12-03 Hyundai Motor Company Planetary gear train of automatic transmission for vehicles
KR20140126784A (ko) 2013-04-19 2014-11-03 삼성전자주식회사 모터

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000094973A (ja) 1998-09-28 2000-04-04 Hitachi Ltd 変速装置およびそれを用いたハイブリッド車
US6910981B2 (en) 2002-02-26 2005-06-28 Nissan Motor Co., Ltd. Hybrid transmission and its assembling method
US7189177B2 (en) 2003-09-30 2007-03-13 Aisin Aw Co., Ltd. Electrically operated vehicle drive controller, electrically operated vehicle drive control method, and electrically operated vehicle with a vehicle drive controller
US8337352B2 (en) 2010-06-22 2012-12-25 Oshkosh Corporation Electromechanical variable transmission
JP2012116435A (ja) * 2010-12-03 2012-06-21 Honda Motor Co Ltd ハイブリッド駆動装置
US20130090202A1 (en) * 2011-10-08 2013-04-11 Finemech Co., Ltd. Drive device for hybrid electric vehicle
JP2013119280A (ja) 2011-12-06 2013-06-17 Mitsubishi Motors Corp ハイブリッド車用変速装置
US20140378258A1 (en) * 2013-06-24 2014-12-25 Hyundai Motor Company Transmission system of hybrid electric vehicle

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10286771B2 (en) * 2015-10-05 2019-05-14 Toyota Jidosha Kabushiki Kaisha Drive unit for hybrid vehicle
US10814713B2 (en) 2016-06-13 2020-10-27 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Transaxle device
WO2018019611A1 (de) * 2016-07-26 2018-02-01 Voith Patent Gmbh Antriebsvorrichtung mit überlagerungsgetriebe
US10343671B2 (en) * 2016-12-12 2019-07-09 Hyundai Motor Company Power transmission apparatus of hybrid electric vehicle
CN108263193A (zh) * 2017-10-24 2018-07-10 广西玉柴机器股份有限公司 混合动力系统
CN108263192A (zh) * 2017-10-24 2018-07-10 广西玉柴机器股份有限公司 一种混合动力系统
CN108372780A (zh) * 2017-10-24 2018-08-07 广西玉柴机器股份有限公司 带锁止器的双电机双行星排混合动力总成
CN110360312A (zh) * 2018-03-26 2019-10-22 爱信Ai株式会社 动力传递系统
CN110857030A (zh) * 2018-08-22 2020-03-03 现代自动车株式会社 车辆的动力传输系统
CN110857030B (zh) * 2018-08-22 2023-08-29 现代自动车株式会社 车辆的动力传输系统
US20200171931A1 (en) * 2018-12-04 2020-06-04 Hyundai Motor Company Power transmission apparatus of hybrid electric vehicle
US10913341B2 (en) * 2018-12-04 2021-02-09 Hyundai Motor Company Power transmission apparatus of hybrid electric vehicle
WO2021110194A1 (de) * 2019-12-04 2021-06-10 Schaeffler Technologies AG & Co. KG Antriebseinheit und antriebsanordnung
CN111619334B (zh) * 2020-06-01 2022-07-12 奇瑞汽车股份有限公司 混合动力系统和控制方法
CN111619334A (zh) * 2020-06-01 2020-09-04 奇瑞汽车股份有限公司 混合动力系统和控制方法
CN112224006A (zh) * 2020-08-28 2021-01-15 广西玉柴机器股份有限公司 一种三挡平行轴式双电机三行星排混合动力系统
CN112977041A (zh) * 2021-04-15 2021-06-18 上海中科深江电动车辆有限公司 双电机发电系统

Also Published As

Publication number Publication date
CN105782366A (zh) 2016-07-20
KR101610089B1 (ko) 2016-04-07
JP2016068925A (ja) 2016-05-09
KR20160035325A (ko) 2016-03-31
DE102014117813A1 (de) 2016-03-24
JP6457787B2 (ja) 2019-01-23

Similar Documents

Publication Publication Date Title
US9140343B1 (en) Transmission system of hybrid electric vehicle
US9297447B2 (en) Transmission system of hybrid electric vehicle
US9604529B2 (en) Four wheel drive power transmission system of hybrid electric vehicle
US9809104B2 (en) Transmission system of hybrid electric vehicle
US9365102B2 (en) Power transmission system of hybrid electric vehicle
US9340098B2 (en) Transmission system of hybrid electric vehicle
US9168823B2 (en) Transmission system of hybrid electric vehicle
US9387754B2 (en) Transmission system of hybrid electric vehicle
US9452673B2 (en) Transmission system of hybrid electric vehicle
US9260001B2 (en) Power transmission system of hybrid electric vehicle
US20160230850A1 (en) Power transmitting apparatus for hybrid vehicle
US9821646B2 (en) Power transmission system of hybrid electric vehicle
US9212734B1 (en) Transmission system of hybrid electric vehicle
US9193253B2 (en) Power transmission system of hybrid electric vehicle
US20170151865A1 (en) Power transmission system of vehicle
US9174523B2 (en) Power transmission system of hybrid electric vehicle
US9702437B2 (en) Power transmission system of hybrid electric vehicle
US10458522B2 (en) Planetary gear train of automatic transmission for vehicles
US9199528B2 (en) Hybrid power train for vehicles
US20200180425A1 (en) Power transmission system of vehicle
US9701189B2 (en) Power transmission system of hybrid electric vehicle
US20090251029A1 (en) Stator can housing welded to bearing support and method of assembling a hybrid transmission utilizing the same
US10308107B2 (en) Multi-mode hybrid powertrain
US9829078B2 (en) Planetary gear train of automatic transmission for vehicle

Legal Events

Date Code Title Description
AS Assignment

Owner name: HYUNDAI MOTOR COMPANY, KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KIM, BAEKYU;KIM, INSUP;KIM, SEOKJOON;AND OTHERS;REEL/FRAME:034306/0016

Effective date: 20141126

STCF Information on status: patent grant

Free format text: PATENTED CASE

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 4

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 8